Fastening for railroad or other structures.



C. J. GADD.

FASTENING FOR RAILROAD OR OTHER STRUCTURES.

APPLlCATION FILED 00115. 1915.

1,199,743.. PatentedSept. 26,1916.

2 SHEETS-SHEET I.

C. I. GADD.

I FASTENING FOR RAILROAD OR OTHER STRUCTURES.

APPLICATION FILED OCT. 15, I915.

Pat-ented Sept. 26, 1916.

2 SHEETSSHEET 2 njjntar flttorrzey CHARLES J. GAEDD, OF I|IElI B.B.NO1 T, PENNSYLVANIA.

FASTENING FOB RAILROAD OR OTHER. STRUCTURES.

To all whomz't may concern:

Be it known that 1, CHARLES J. GADD, a citizen of the United States, and a resident of the city and county of Lebanon, in. the

State of Pennsylvania, have invented cer-- tain new and useful'Improvements in F astenings for Railroad or other Structures, of which-the following is a specification.

My invention relates to an improved fastening for railroad or other structures and the object of my'invention is to provide a simple, durable andeiiicient means whereby the separate parts of a structure, notwithit will be. observed that the fastening bolts standing that theymay be inclined at an passing through the stock rails will assume an endless numberof angles to the face of the webs of the stock rails against which the head and nut of the bolt must exert the necessary pressure to hold the structure together. The same conditions, to 4V greater or lesser degree, are frequentlyfound in other structures of metal and heretofore it has been the practice to make use of suit ably beveled washers, or to bevel off the under side of the head of the bolt, and to place a beveled washer under the nut, so

that the pull of the bolt would be properly applied to the parts which it was holding together. In practice this construction is far from efficient as eccentric stresses are.

set up in the bolts which cause them to presto this it will be seen that an endless assortment of angle washers orangle headed bolts must be maintained in order'to suit the great number of angles that occur and this is not only troublesome but expensive. I proposeto furnish a standard head bolt,

a standard nut, and standard washers which i may be; used universally for securing together members of structures which are inclined at angles to each other and to the bolt which will be so designed as to eliminate all eccentric stresses and in which the bolt will be under tension only and to furnish in connection therewith a means Specification of Letters Patent. Patented Sept. 26, 1916 Application filed October 15, 1915. Serial No'. 55,929. I

-whereby the nut, once it is tightened and locked, cannot be loosened by vibration.

In the accompanying drawings forming part'of this specification, and in which similarletters of reference indicate similar parts throughout the several views F igu're 1, is a plan View of a railroad frog or crossing showing the application of my mvention thereto; Fig. 2, a section, en-- larged, of Fig. 1 on line A-A; F gs. 3, 4 and 5, plan views of washers for my several forms of bolt heads; Fig. 6, a perspective view of split washer to be locked against- ,bolt by screwing downnut; Fig. 7 a perspect ve vlew ofbclt head having the form usual in such constructions, 13 are bolts passing through the stock rails and filling piece which are at one end, furnished with heads 14 and at the other end with a thread 15 which carries a nut 16.

The underfsides of the head of the bolt may be spherical with flattened sides 17 as' shown in Figs. 7 -and 9 orscylindricalwith flattened sides 18 as'shown in Figs. 2, 8 and 10 and these heads are adapted to be received, by washers having pockets to'correspond .with the formof the head," that is to say, the heads shown in Figs. 7 and 9 are carried in washers 19 having pockets 20which receive the flattened spherical head shown in Figs. 7 and 9 and those shown in Figs. 2, 5 and 10 have pockets corresponding .to the cylindrical heads shown in Figs. 2,8 and 10. '1

It will be observed that the heads of the spherical headed bolts may be moved around in the pockets in these washers so that the bolt itself "can be inclined at any direction to the washer while theflheads' of the cylindrical headed bolts may be moved 70- of part of a sphere; Fig.- 8, a perspective The flattened sides of the spherical head prevent the bolt thus headed from turning upon its axis .when the nut is being wrenched upon its threaded end while the same result 'is secured in the cylindrical headed construction by the peculiar T shape of the bolt seated in its socketed washer.

' It will be observed that the spherical headed bolt shown in Figs. 7 and 9 has a greater diameter or radii upon its longitudinal axis than upon its transverse axis. This construction permits the head to rock in any direction in its socket, shown in Fig. 4, and prevents the bolt from turning axially when the head is seated in the socket.

16 is the nut which is carried by the threaded end of the bolt, 22 a split washer the face 23 of which adjacent to the nut 'is'fiat and the opposite face 24 of which is spherical, 21 a washer with one flat face 25 and upon the opposite side furnished with a spherical pocket 26, preferably of slightly less diameter than that of the spherical face 24 of -washer 22.- When the nut 21 is wrenched' up on the threaded end of the bolt the spherical face 24 of washer 22;

is forced into spherical pocket 26 in washer "21 and as thiswasher is split it will be closed down tightly against the bolt and one side of its fiat face at the slit will be cocked up as shown in Fig. 2 presenting a sharp edge to the face of the nut which will prevent this. latter from turning off the, bolt prematurely.

Having thus described my invention 1 u claim as new and desire to secure bylLetters Patent 1. In a fastening for railroad or other structures having inclined members, in combination, a perforated socketed member, a threaded bolt adapted to pass through the perforationin said member and carrying a head adapted to rock in the socket but not to rotate therein, a member having a substantially hemispherical socket, a split washer having a substantially spherical face adapted to rest in said socket, and a nut, all substantially as and for the purposes set forth.

2. In combination, a bolt having a head oblong in plan the under side of said head being convex the radii or diameter upon the longitudinal axis being greater than that' on the transverse axis, a perforated member furnished with a socket corresponding in form'with and adapted to receive the under side of said head, a substantially hemispherical socket member through which the threaded end of said bolt 

